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|   | (b) | Engine Life-Limited Parts: With respect to life-limited Parts within any Engine, the performance, in accordance with the Lease, of any replacement or repair of those Parts
(“Engine LLP Replacement”), the lesser of (x) the net cost as shown on that invoice and (y) an amount equal to the aggregate amount of the Engine LLP Supplemental Rent paid in respect of that Engine under the Lease with respect to periods
prior to the date such work is completed less (aa) any credit granted by the Maintenance Performer to Lessee in respect of any repairable life-limited Part which has been replaced (with such credit being calculated by reference to the then remaining
life of such life-limited Part) and (bb) the aggregate amount previously paid in respect of that Engine by Lessor under this sub-section;  |

  




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|   | (c) | Engine Refurbishment: With respect to any Engine, the performance, in accordance with the Lease, of Engine Refurbishment in respect of that Engine the lesser of (x) the amount as
shown on that invoice and (y) an amount equal to the aggregate amount of the Engine Supplemental Rent paid under the Lease in respect of that Engine with respect to periods prior to the date such work is completed less the aggregate amount
previously paid in respect of that Engine by Lessor under this sub-section;  |